/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file           : main.c
 * @brief          : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2024 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
// #include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
__IO uint32_t uwTick=0;
/* USER CODE END Includes */
 
/* Private function prototypes -----------------------------------------------*/
// void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
void SystemInit (void)
{ 
}

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void delay(uint32_t delay)
{
  volatile uint32_t max = uwTick + delay;
  while (max - uwTick)
    ;
}

void led_init()
{
  //PB2 PC13
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
  GPIOC->CRH &= ~(0XF0 << 16); // CLEAR CHR CNF13 MODE13
  GPIOC->CRH |= 0x10 << 16;    // 推挽输出 PC13

  GPIOC->BSRR = 1 << 13; // set pc13

  GPIOC->BSRR = 1 << 13 << 16; // reset pc13
 
  GPIOB->CRL&= ~0X0F00  ;
  GPIOB->CRL|=0X0100 ;

  GPIOB->BSRR = 1 << 2; // set pB2

  GPIOB->BSRR = 1 << 2 << 16; // reset pB2

}
/* USER CODE END 0 */

/**
 * @brief  The application entry point.
 * @retval int
 */
int main(void)
{

  /* USER CODE BEGIN 1 */
  SysTick_Config(8000);
  led_init();
  /* USER CODE BEGIN 1 */

  while (1)
  {
    delay(500);
    GPIOC->BSRR = 1 << 13; // set pc13
    GPIOB->BSRR = 1 << 2; 
    delay(500);
    GPIOC->BSRR = 1 << 13 << 16; // reset pc13
    GPIOB->BSRR = 1 << 2 << 16;
  }
  /* USER CODE END 1 */ 
}

/**
 * @brief System Clock Configuration
 * @retval None
 */
// void SystemClock_Config(void)
// {
//   RCC_OscInitTypeDef RCC_OscInitStruct = {0};
//   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

//   /** Initializes the RCC Oscillators according to the specified parameters
//    * in the RCC_OscInitTypeDef structure.
//    */
//   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
//   RCC_OscInitStruct.HSEState = RCC_HSE_ON;
//   RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
//   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
//   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
//   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
//   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
//   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
//   {
//     Error_Handler();
//   }

//   /** Initializes the CPU, AHB and APB buses clocks
//    */
//   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
//   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
//   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
//   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
//   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
// #ifndef FLASH_LATENCY_0
// #define FLASH_LATENCY_0 0x00000000U         /*!< FLASH Zero Latency cycle */
// #define FLASH_LATENCY_1 FLASH_ACR_LATENCY_0 /*!< FLASH One Latency cycle */
// #define FLASH_LATENCY_2 FLASH_ACR_LATENCY_1 /*!< FLASH Two Latency cycles */
// #endif
//   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
//   {
//     Error_Handler();
//   }
// }

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
 * @brief  This function is executed in case of error occurrence.
 * @retval None
 */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
 // __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef USE_FULL_ASSERT
/**
 * @brief  Reports the name of the source file and the source line number
 *         where the assert_param error has occurred.
 * @param  file: pointer to the source file name
 * @param  line: assert_param error line source number
 * @retval None
 */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
